Evolution - Convergent Hearing
OMFSerge at Imago Dei has an interesting post on Mammalian Middle Ears
It seems scientists now think the 3 bones of the mammalian middle ear evolved convergently, 3 times. And this whilst 1 boned middle ears do very well in some animals such as birds.
He asks several important questions
If one ear bone transmits sound well, why did a more complex arrangement of three evolve multiple times? Why do we see this arrangement in all mammals, but not in reptiles or birds? Wouldn't evolution via completely natural processes predict a more random arrangement of inner ear components?
I wonder how many examples of convergent evolution we are meant to stomach before the whole ad hoc evolutionary explanation falls down?
Read the whole thing.